Matic sheet-feeding be vice



Jan. 17, 1928.

R. P. A. LE GRAND ET AL APPARATUS OF THE ROTARY TYPE HAVING AN AUTOMATIC DUPLICATING AUTOMATIC SHEET FEEDING DEVICE 4 Filed May 19, 1925 4 sheets-Sheet 1 gi Ems* wm. uw

E@ ATTORNEYS.

Jan. 17, 1928. 1,656,207 I R. P. A. LE GRAND ET AL AUTOMATIC DUPLICATING APPARATUS oF THE ROTARY TYPE HAVING AN AUTOMATIC y SHEET EEEDING DEVICE 'Filed May 19, 1925 4 Sheets-Sheet 2 L fffs EYFMM MMM ATTORNEYS.

Jan. 17, 1928.

l AUTOMATIC DUPLIQATING APPAR A. LE GRAND ET AL ATUS OF THE ROTARY TYPE HAVING AN AUTOMATIC SHEET FEEDING DEVICE Filed May 19, 1925 4 Sheets-Sheet 5 Jan. 17,y 1928. 1,656,207

R. P. A. LE GRAND ET AL AUTOMATIC DUPLICATTNG APPARATUS oFTHE ROTARY TYPE HAVING AN AUToMATlc SHEET FEEDING DEVICE Filed May 19, 1925 4 sheets-Sheet 4 ///V VN T035 ATTo/TNEYS.

`1 consequently regulates the moment When the suction of the sheet ot paper should he niaclefin 'relationto a predetermined'position of the cylinder.

Moreover, the lever L can he attached to itsencl-Eby `a rod touching the cylindricalV en cl eind permitting the `lever to operate whilst ythe cylinder is stationary. It is then possible to operate the pump P by hand, Without-turning; the cylinder C.`

vThe two supports l e cl flore provided at their top with two holes 22 and 23, treversecl by' La cylnclrievalfslmit 24 Whose ends have o, cylindrical hole bored therethrough 'p'encll'ci'il r to the'shtftsind which allow con lt-fntly pressed clo'nfnn'nrdly, "acting` upon "iidief'rtiloher or' vf ,reliitine roller 31, mounted on copper tribey 32'ellowing itto tu'rn with v'slight friction :on 'the shalt 24. Conseqnen-tlfrfthe rollerl, owing to the arrangemei e clescriliecl zho've Vis constn'tl 1 nrqed 'downwardly in such eivay thnsone 0i lthe Vgeneri` 'lngl line's 'comes into Contact with a generat ne` of the cylinder C, The

fis' "forcibly fapliedto the sheet of peper to impress it lon 'thefcylincler C carrying the composition 'for stereotype.

' flflie'iairengeinent `Wli'ieli is to lie described "helo'w'haslo'r its `oljjleetftlie eliminalion of the so-'called clencl point lo 'avoid which vthe 'cylinder C ce 1 ller 3l only vcomesi'nto cont-net With the ng the typeT if 'for some reason (had automatic feed or failure fof peper supply or "ivorhin'gol the vacuum op? porotos) no sheeto'l ypeper is interposed hey ,en the roller 3l andthe cylinder @n theeli'slr islmlonntfed afn arm 83 `pivfteclzift '0. i y@ne end ofthisnr'mV 33 is snp- 'ported under th'elowefr enel "E ofthe lever L. The 'other end 3l engages rol't which 36, trove 'ig the 'Cylinder C parallel to "one cms iitftheoppositeV ends fol? the vcylinder The lever L 'having been raised by the snil 'com "during the iiiovement f'liro'totion, inn'st not Iloll vto the lower lpart of 'its tr 'fel shoi-i'lcl a, sheet of paper 'cover ti-hei'lsnic'tion, holes 9, l() :and lll, lont in'i'rhe ie Le 'ivhele' sheet 'clo'es not, 'for some reason, ecverthefholes,v the-lever L falls Vto the hott'o'm 'el v'travel end its en'flE coming into Contact 'with tlie'am 33 raises it `by means kof the cams 35, which during the rotation of llecl the pressure. cylinoer and formed inside the cylinder. constantly drawn outwardly by the spring the cylinder C becomes vertical to the ahntmenlws 3S, 39 of the, pressure cylinder :1nd

yreise the shalt Q41; ol the pressure cylinder until the centres ol this ehn'lt como opposite spring clips 40 ond 4l which msiintnin the cylinder 3l in raised position removed from the cjf'linilei. C during' snl'istnniinlly :in ontiro revolution lliereolf and until the liied coms l2 and 4.3 on each 'of the disks 5 :1nd .7 become engeg d With the clnws ell :ind Lli of the zibntments 38, fl. iheee latter hy reason of the shape of the coms l2 und Ll?) are drown downwnrdly llnis liringging the, centres of the sho'l'V ont` oli engagement with the clnivs llh ll-l, and allow the cylincl'er 3l to descend :rejoin in contact with the cylinder C. rlhe com 35, nelnnted hy the lever L tlnoi ``h the erin f'll, nt the some time ensures the raising; of the cylinder 3l to displace lhe projection ol1 the recorder (not shown) it n sheet, is not printed.

The apparatus comprises inorem'er :i inernl pl-fito G5 which places nearly vertically hlzinlz sheets of peper, thnl the ends oli the sheets come into Contact with the slecl hor (3G snp- "porlicd hy erljnstnhle levers GT which allows the endsl of the sheets to :ippi'oneli the cylinder C Withont, however. :ieinnlly making" Contact which would here the ellecl ol ernmpling` the sheets.

'lwo prongs (if) and 70 pivoted lo one of the, cross hors ot the l'reme 71 through their 'f nfivecl ends, come into Contact with the cylinder C, interpose theinfc-lelvcs hetn'ecn the 'latter and 'the printed 'sheet olt pope-1g de toch ii: from the eylinoer and nnss it into :i receiver TQ fixed in 'front ot the apparatus. rlhis receiver comprises rez-tiff. :ind hor?n zent-nl guides similar to those oi (he plaie, G5` neljnstalile lo the sir/.c ol' the peper need.

A metal cover ninja cover lhe whole :11)- ikinrol-ns lo "protect il lroni dns :1nd lo l':\- ciltnte ils tranfflp' .ln the i'oorlilicnlioi'i shown in li`ignrer: 3 and the holes SL l@ :ind ll, in the tnhe il, nre in direct conmninicntion lhronyrh the tribe with the annuler :",izzee "r'l formed hy the :flanged disk i. 'lfhis :infinlwr .space .is closed hy o lcxihlc rnhher liinhrn;rni 7l held on the ll' e'eil disk 'i' hy 'menus ot :i Washer 754b secured hy 'lli'. This flinphrogm has otits centre :i circular hole Whieh con he lined hy menne of tiro ri'elnllic Washers 27T nnrl ill onomstlhc fhonldered end of the piston rod ill. This rod is connected to the end of roel-:ine lercr which can oecillnle nl' Sl on the fixed shall, f-eenreil in' the support 852Y The other end S2 oli' this rocking lever :ich: upon :i Het 'of Vthe rod @el ot the innnp. This rer-l 84 slides in the disk 7 :ind in the hoef: This rod is S6 'acting` on the boss S5 und upon a suitable Washer or pm 88 positioned on the shalt Boo the lever.

rgesaaor 9, 10 and 11, which open into the chamber' 74 in such a way that the movement of the rubber diaphragm 7 lcauses a suction, of air through the holes 9, 10 and 11.

The flange 5 has on its outer surface at the centre a beariiig in which .is screwed the st-ud 4f. This bearing is prolonged to the inside of the cylinder by another bearing of the same diameter on which slides a bush 92 connected to the movable cam 93 by three fingers 94: which traverse the surface of the flange.

The bush 92 has a hole in one end in which engages a rod 95 having two nuts 96 and in the otherend a strap 97 pivoted at 98 to the head of the piston rod .79. The rod 95 ter minates in the inside of the bush 92 with a cylindrical head on which presses a spring 99 which contacts at its other end with the bush 92.

0n the outside of the `flange is fixed a fixed cam 100 whose shape is such that its exterior diameter and that of the cam 93 form a continuous circular cam.

The cylinder 101 supported by the flanged disks 102 and 103 rotates, through central bushes 104 and 105, on a lined shaft 100,

,hinged by a suitable arrangement on forks 107, 108, pivoted to the bar 109. These forks rest, by means of two adjustable screws and 111, against levers 112 and 113, fixed to a steel tube pivoting on the cross bar 1111. The lever 112 has on its lower surface a roller 115 turning on the shaft 116 fixed to The position of the roller 115, which has a small shoulder, is such that it contacts with the circular cam constituted by the fixed cam 100 and the movable cam The upper cylinder is operated by a pinion 117 fast on the flange 103; this pinion engages with a pinion 113 on the flange 7 of the lower cylinder so` that both cylin ders rotate at the same speed.

Inside the upper cylinder is secured, on the shaft 106, by means of two claws 119,- 120, an inker in the shape of a trough 121 whose ends have a slot through which the shaft of the circular brush 122, which si'ipplies the necessary ink for the printing, can pass. This brush has at each end a rubber roller 1.23, 124, whose diameter is slightly smaller than the diameter of the brush, so that by means of levers 125, 126 and 127, it is posisible to raise the brush'from the bottom of the iuker to the rubber rollers in contact with the inner wall of the upper cylinder. During the rotation of this cylinder, the rubber rollers are rotated and the brush, revolving on its shaft sweeps across the inside of the cylinder, imparting ink to its inner surface.

On the support: 2 on the right of the apparatus are fixed two cams 128 and 129 (Figure Ll) arranged so that the roller 89 1s forced, duringthe rotation of the lower cylinder, to mount successively each of the cams 5, thus laterally displacing the rod 811.

On the front part of the apparatus (Fig-p ure is .fixed a platform 130 having a sliding catch 131 held by an adjustable screw 132 and on which are placed the sheets of paper to be printed.

`it the back of the apparatus on the cross bar 133 is a receiver 72 for the sheets after they have been printed.

T he apparatus works as follows :-d

The preceding description shows that when the cylinder l is rotated by the crank handle M, there Vis a time when the rod 311, whose roller mounts the cam 129, is forced to the :inside of the cylinder. At this instant the membrane 721 is compressed, decreasing the volume of the annular space 741 of the flange 7.

On further rotation, the roller 89 quickly disengaging` the 'am 129, allows the rod 84, owing` to the spring 86, to take up its original posit-ion, and the membrane on relaxing, increases the volume of the annular space of the flange 7', causing a suction through. the holes 9, 10 and 11.

The position of the holes, at the moment of suction, is at a (Figure 1) and about two or three millimetres from the upper edge of the sheets on the feeding plate 130.

The sheet nearest the cylinder is then sucked and taken round by the cylinder. The sheet of paper clinging to the holes 9, 10 and 11, prevents any material amount of air from returning to the hollow part of the flange Tf and as the membrane 74 can no longer take up its original position, its rod, by means of rod 95 and the bush 92, will hold the cam 93 against the flange 5', so that lined cani 100 and the movable cam 93 are no longer contini'lous. The roller 115 then falls, pulls the lever 112, so that the forks 107 and 108, which contact with this lever, also fall, thus allowing the upper cylinder to engage the lower, and printing` the sheet of paper.

lWhen the roller 39, ou further rotation, cornes against the cani 123, it produces au inverse movement, the membrane released. and the air expelled through the holes 9, 10 and 11, raises the sheet which is detached from the lower cylinder and projects it on to the receiver 72.

lt is thus impossible that the upper cyliu der can contact with the lower if for some reason the holes 9, 10 and `ll., are not covl 1; rllhe comb o ergated the `upper eylinder descends.

.lhe coiiinting tot' the printed "sheets is `thus iPQlQQy .laccuretei `ind the y,apparatus can turn .Without rtherecorder Itunetionno'..

A The inyention islnotlinited` to the details described) i NVhet `Weeltiiin is i i i nut-ion with automatic dutus ,offri rotary printing inline@ loyizlinder,epress 'eicylinfderto be applied to e sheet of paper on the printing cylinder,

` `Aand ksuction means supported by said yprintnineties' rune suction ineens housed .Within said cyliu- C vI' Y Qing', eilinder toi' rotation,therewith flier outointieelly feeding erich sheet oi paper und Controlling position ,ot seid pressure 'Cylinder'.

The coilnbination with automatic du- .plifcetingv Vzippnrotus'oi .a rotary printing `,oyliigider, yn pressure,cylinder ,to be Aapplied `toltisheet of peper Yon `the printingl cylinder,

suctionchrunber `con'iuiuniceting with the und i rtfible Atherewith i tor retaining' v seid sheets ot er. on seid frintino; cylin- Y iV f t ler, 1ineens tor preventino said pressure cyl-v i er n being Aapplied to sind printing nder,y said,lestfinentioned ineens lieing` lied by 'seid suctionl ineens.

"iurtion rif'ith automatic du- 40 plie'i A g apparatus ot n rotary printingieylinder, up essure rcylinder to be 'applied to ,fr sheet "o @per on ythe printing' cylinder',

i l suction ineens supported on und rotatable 1 seid itingcylinder for `fiutoinntically :feeding ,each ysheet O'puper, sind suction @beingeutoinatienlly released upon failure of n sheetfoffwpuper to be kted to said printing inder. v

K Q5. AThe A`coinbinution with automatic luplit'ziting` apparatus oi" n rotary `printing4 cyliryiiirdrei', a, pressure vCylinder to be applied' lo zr sli-elet of peper on the printingv eylinder, suc- @tionuneans l'jornuton'iuticslly Yfeeding' euch Y. ieetoj piper` said suction being automoti- .l ll

y released upon failure of n sheet ot ijiuper to be 'fed to said i. 'ring' cylinder, ineens operated by therelense of seid suetion kfor maintaining said pressure cylinder ofA engagement with .seid printing cylin- .der and ineens controlled directly by rota Vtions of seid cylinder 'for operating` suid suction i'uenns und Creating` sheet holdinfai4 suction einen? on such subsequent rotations.

ln :i duplicating` apparatus, fr printing` cylinder, :i suction Conduit loruxed with ineens for rgiziintuininlg;v u sheet of paper on seid printing); cylinder, suction producing' ,ineens for seid `conduit comprising :i inor `able suction producing' nieniber carried by und rotutulvle ri'ith seid cylinder7 :and operat- Asible suction producii'io; inenibcr carried by :md rotzitoble with seid cylinder, und operetinp; means r'oinprisinrr iixcd elements und parte rotatable with seid cylinder' i'or nior- .inoj seid n inber :it certain predetermined periods dui the rotation of Suid Cylinder jfor creating; und relieif'ingr the suction in seid conduit, :i pressure cylinder, u ouin termed with u reniovuble portion7 means responsi've to the `position ,of said portion for inniigziiningr Suid pressure cylinder lout oi" contsiet with said printing cylinder :1nd ineens responsive to the suction in seid con duit 'for controlling the ren'iovul of said reinorzible czun portion.

8. The combination with :iutoinutie duplie-sitingY apparatus oil :i rotary printingr c \'linder, :i pressure Cylinder to be applied to :i sheet of paper on the printing cylinder. :i nioj'nble diaphrngin, obstructing oi'ilir'es in the printing' cylinder, u Contact rod operated by the (liuphrurin und movublo along smid pr.'l ting),` Cylinder. un operating` leren lixed efuns acted upon by said lover one ol* u'hii'h effects the suction olE the sheet nu d the other its detachment `from the eyliiu'lrr :i movable support for seid pressure ('-ylinder displnreable tln'ouirh the movement ol smid rod und fixed and movable cuius noted upon lu' the lever for controlling` soul pressure cylinder support, one of' seid cuius boing; mumble lo' ineens ot said rod. l

ln testimony whereof we here olliud our signatures.

REN llERRE ALEXANDRE. lli lill/liti). ANTOlNE MICHEL GARRET.

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